baber/WOPTO huggingface dataset:
Patent GB-1384508-A (GB)
Title: Monoazo dyestuffs of the phenylazoindole series
IPC: C09B29/40
Filed: 1973-05-09
Abstract: 1384508 Monoazo dyes BAYER AG 9 May 1973 [10 May 1972] 22140/73 Heading C4P New monoazo dyestuffs of formula wherein R 1  is an alkyl or aralkyl group, R 2  is a H atom or an alkyl or alkoxy group, R 3  is an alkyl or aryl group, R 4  is a H atom or an alkyl group, R 5  is a H or halogen atom or an alkyl or alkoxy group, each X is independently a halogen atom or a CF 3  group and n is 0, 1, 2 or 3 are prepared by coupling diazotized amino-phenyl-sulphones with 2-substituted indole-sulphonic acids. The dyes are used to colour fibrous material, in particular synthetic polyamide fibres in yellow to orange shades.
Patent GB-767505-A (GB)
Title: Improvements relating to the electrical production of printing surfaces
Inventor: CROSFIELD JOHN FOTHERGILL
IPC: G03F3/08
Filed: 1953-08-11
Abstract: 767,505. Local copying by scanning. CROSFIELD, Ltd., J. F. July 23, 1954 [Aug. 11, 1953], No. 22141/53. Class 40 (3). A cylindrical or flat printing plate comprises a rigid electrically-conductive backing and a layer of partially electro-conductive material permanently attached to the backing and having its surface scanned by an electric discharge which is controlled during the scanning to remove varying amounts of the surface material in correspondence with the trace of the original to be copied without perforating the layer of partially electro-conductive material. The amplitude or duration of the pulses may be varied and the recesses produced may be of constant area and variable depth. Alternatively, the recesses may be variable both in area and in depth. In the arrangement shown a coloured transparency 7 on a rigid plate is scanned by a flying light spot from a C.R. Tube 4 and the beam passes via a filter 13r to a photo-cell 10r and is split by half-silvered mirrors 11, 12 to impinge on photo-cells 10g, 10b via colour filters 13g, 13b. The cell outputs are fed to amplifier units 15g, 15r, 15b, which may include inverter circuits, logarithmic attenuators and correction circuits, which may be of the type described in Specification 738,118, and then to modulators 16g, 16r, 16b operated to provide the amplitude, or duration, modulated signals to be applied to the discharge electrodes 3g, 3r, 3b. The partially electroconductive layer may be formed by a plastic sheet of polyvinyl chloride impregnated with powdered carbon or metal particles and the electrodes 3g, 3r, 3b are preferably of tungsten wire. The printing surfaces 1 may be flat plates, the electrodes 3g, 3r, 3b being moved rapidly across the plates which are stepped at the end of the rapid line scanning movement.
Patent GB-650791-A (GB)
Title: Improvements in and related to elastic yarns
IPC: D03D15/56
Filed: 1947-08-09
Abstract: 650.791. Elastic yarns and fabrics. LASTEX YARN & LACTRON THREAD, Ltd., and JAMES, R. G. Aug. 9, 1947, No. 22173. [Class 120(iii)] Potentially elastic, substantially inextentensible yarn comprises an elastic core thread under tension associated with a restraining thread and held against contraction by a textile covering enclosing the core thread and the restraining thread. The restraining thread may be soluble in a liquid having no deleterious effects on the other components of the yarn, e.g. it may be a wool, cellulose acetate or alginate thread, so that it may be removed after the incorporation of the yarn in a fabric. Such a yarn may be made by feeding an elastic core thread from a package, at a constant speed to delivery rolls rotating at a constant but higher speed so as to stretch the thread; feeding a substantially inextensible restraining thread to the said core thread and applying wrappings of textile yarn to the stretched core thread and restraining thread so as to associate the said threads and form the composite yarn. Alternatively the stretched core thread may be first wrapped with a textile yarn before association with the restraining and wrapping threads. Specifications 395,521 [Group XXV] and 520,640 are referred to.
Patent GB-443563-A (GB)
Title: Metallic flexible tubing and the manufacture thereof
IPC: B21C37/12
Filed: 1934-07-30
Abstract: 443,563. Making flexible tubes. TONDEUR, R., 25, Denbigh Terrace, Notting Hill, and BOWDEN (ENGINEERS), Ltd., Victoria Road, Willesden Junction, both in London. July 30, 1934, No. 22201. [Classes 83 (ii) and 83 (iv)] [See also Groups II and XXVIII] Coiling.-Flexible tubing made of multiple interwound coils is formed by coiling or winding, heating, and hardening the leading coil before the already tempered following wire is inserted between the windings of leading coil. The leading wire 5 passes through a coiling machine 9 and rollers 2 and completes an electrical circuit 3 which effects heating to about 900‹ C. The coil is then hardened by air blast or other quenching. The following wire 6 is coiled in a machine 10. In a modification the coil is heated by a high frequency induction furnace. The wires are of sectional areas which make the leading and the following coils of equal elastic strength. Specifications 412,367, [Group XXIV], and 428,937 are referred to.
Patent GB-1410104-A (GB)
Title: Windscreen wipers
IPC: B60S1/38
Filed: 1973-05-09
Abstract: 1410104 Windscreen wipers MAGNATEX Ltd 7 May 1974 [9 May 1973] 22230/73 Heading A4F A windscreen wiper has a resilient plastics pressure distributing harness 4 comprising two or more pairs of resiliently flexible arms 7, 17 extending in opposite directions from a central portion 5, the arms 17 being shorter than the arms 7, and claws 8, 18, 8a on the free ends of the arms 7, 17 and on the central portion 5, respectively, connecting the harness to a squeegee element 1, the arms 7, 17 being biassed to cause the wiping edge of the element 1, when unrestrained, to be curved. The arms 7, 17 may be formed integrally with the portion 5 or may comprise separate parts joined thereto by adhesive. The harness 4 is preferably of polycarbonate. The claws 8, 18 8a embrace flexible reinforcing strips 2 in the element 1.
Patent GB-151459-A (GB)
Title: Improved safety device or guard for the doors or gates of lifts or hoists
IPC: E06B9/06
Filed: 1919-09-11
Abstract: 151,459. English Sewing Cotton Co., and Bennett, A. Sept. 11, 1919. Lift doors, locking.-Tampering with the fastening C of lattice gates of lifts is prevented by plates A<1>, A<2>, A<3> attached to adjacent pickets so that they slide one over the other when the gate is opened.
Patent GB-1151444-A (GB)
Title: Loading Motion Picture Film Cartdridge
IPC: G03B17/30
Filed: 1966-05-19
Abstract: 1,151,444. Cine-film loading apparatus. EASTMAN KODAK CO. May 19, 1966 [May 20, 1965], No.22354/66. Heading G2E. In apparatus for darkroom loading cine film into a cartridge having a body (24, Fig. 5 not shown), with open sides as in Specification 1,031,930 and a central membrane (27) dividing the coaxially mounted core-less film roll (16) and take-up spool (26), a core-less film roll 16 is prepared and placed on support rails 31, the body 24 is manually detached and moved to support 41 while the spool 26 is put in the location 42 where the leader is drawn from roll 16 and trimmed and staked to the spool by device 66 as in Specification 1,132,788; body 24 is then lowered in front of roll 16 which is placed on one side of the membrane 27, while the spool is placed on the other side after threading the leader; the loaded body 24 is then replaced in the cartridge cover (21, Fig. 3 not shown). As the cartridge enters rails 31, a cam member held by posts 57 spreads side walls (22), (23) of cover (21), Fig. 3, and engages actuator 39 to provide a vacuum through apertures 37 which holds wall (22) whereby body (24) may be removed easily. The film leader is trimmed to a narrow end which engages trough (69) of spool (26), Fig. 5, for the staking operation. Plate (40) and support (41) are then pneumatically lowered by piston (76) until opposite roll support (46) which is moved rearwardly by air cylinder (78) to place the film-roll in body (24). Spool (26) is then carried over guide (79) and under plate (40) until its stem (62) partly enters roll (16), surface (80) positioning the leader over guide (29). Member (41) is then raised and body (24) is pushed into the cartridge cover again.
Patent GB-1432083-A (GB)
Title: System for processing chrominance signals
IPC: H04N9/64
Filed: 1974-05-20
Abstract: 1432083 Colour television MATSUSHITA ELECTRIC CORP OF AMERICA 20 May 1974 [13 June 1973] 22388/74 Heading H4F The saturation of a displayed colour television picture is increased for colours more saturated than flesh tones by increasing the amplification factors of colour difference signal amplifying means when the amplitudes of the respective colour difference signals exceed a predetermined value V 2 , Fig. 2, (point 34c) corresponding to flesh tones. When the amplitude of the respective colour difference signal exceeds a second predetermined value V 3  (point 34d) the amplification factor may be reduced below the value of the increased amplification factor. The colour difference signal amplifying means, which may be instead of or additional to conventional colour difference signal amplifiers may include diodes (Figs. 4, 5, 7, not shown) to provide the desired input-output characteristic shown in Fig. 2; a switch (126, Fig. 7, not shown) may be included to vary the shape of the inputoutput characteristic above point 34c (Fig. 8, not shown). For each colour difference signal an amplifier (76, Fig. 6, not shown) having an input-output characteristic as shown in Fig. 2 may be provided in parallel with a linear amplifier (114), an adjustable potentiometer (116) being coupled between the outputs of these two amplifiers.
Patent GB-614777-A (GB)
Title: Improvements in and relating to aircraft with rotary wings
IPC: B64C27/54
Filed: 1946-07-29
Abstract: 614,777. Helicopters. CIERVA AUTOGIRO CO., Ltd., PULLIN, C. G., and WATSON, K. July 29, 1946, Nos. 22506 and 34241. [Class 4] Mechanism for controlling rotor blade pitch angles and which is shown in Fig. 1 mounted on a vertical rotor-shaft 37, comprises a draglink 157 mounted on a flapping pivot-pin 156 whose axis passes through the hub axis; the blade root-stub 166 is mounted to provide a drag-axis by its fork-ends (of which only the lower 165 is shown) in the ends of forks (of which only the lower 161 is shown) shaped from the drag-link; within the blade-root is a diaphragm element 171 bearing a tube 177 by which pitch-changing torque is conveyed to the blade mounted in bearings shown on the stub 166. The tube 177 is universally jointed to a torque-tube 178 which carries a lever 186 (curved for advancing the phase of cyclic pitch oscillation) whose outer end is universally jointed at 188 to a vertical connecting rod (not shown) pivoted at its lower end to a controlling swash-plate; the positioning of the joint at 188 in alignment (in plan) with the flapping axis contributes to obviate disturbance of the pitching angles by flapping movements of the blades, this alignment being maintained, in spite of blade movement on the drag-axis, by the mounting of tube 178 on a spigot-bearing in the drag-link 157 and the positioning of the universal joint connecting torque elements 177 and 178 with its axis in line with the drag-axis. A modification, Fig. 5, in which the drag-pivot is not divided into two axial parts, has the flap axis 6 set on the outer end of drag link 5 pivoted at its inner end on drag pivot 4 near to control shaft 2. The blade 8 carries a lever 9 connected by a joint 10 to a vertical link 11 through which pitch-changing torque is applied from the swash-plate control as described in connection with Fig. 1. The joint 10 is in line with flap axis 6 when the normal value of collective pitch-control is set. The universal point 15 of the pitch-torque transmission is in line with the drag-axis 4.
Patent GB-878443-A (GB)
Title: Process for the peroxidation of alpha-olefin polymers
IPC: C08F255/00
Filed: 1960-06-27
Abstract: Linear alpha-olefin polymers such as polypropylene and polybutene are peroxidized by contacting the powdered polymer with a gas containing molecular oxygen and a volatile organic hydroperoxide, peroxide or perester.  The polymers may be isotactic or may comprise atactic and stereoblock polymers.  The volatile compounds specified are t-butyl hydroperoxide, methyl ethyl ketone peroxide, dibutyl peroxide and t-butyl peracetate or perbenzoate.  The peroxidized polymers react spontaneously to form graft polymers with monomers such as alkyl acrylates and methacrylates and styrene; a particular product claimed being styrene grafted on to peroxidized butene-1 polymer.  The products of the invention may be spun and stetched to form textile fibres, staple fibres and yarns, especially from mixes of isotactic polypropylene with grafted peroxidized polypropylene.  Example 5 illustrates the dyeing of a saponified yarn of such a mix, using Astrazon red (Colour Index 1635) and acetic acid.  In Example 4, a polypropylene mix with 7,2% grafted polymethacrylate is melt-spun at 230 DEG C., under 3 kg./cm.2 pressure, using a winding speed of 300m./min.  The fibres so made are treated with a boiling N/10 alkali solution to partially saponify the grafted polymethacrylate, optionally after stretching.ALSO:A graft polymer derived from peroxidized polypropylene and methyl acrylate is mixed with polypropylene, the mixture is spun, optionally stretched, partially saponified and the fibres are then dyed using Astrazon red 6B (C.I. 1635) using an acetic acid bath.
Patent GB-906715-A (GB)
Title: Improvements in or relating to roof supporting means for mine roadways
IPC: E21D11/28
Filed: 1958-07-14
Abstract: 906,715. Mine roof supports. MOXON (MINING) Ltd., GEO., and MOXON, J. E. July 8, 1959 [July 14, 1958], No. 22550/58. Class 20 (2). A mine roof is supported by arches 10 of H-section in the channels of which the ends of aligned struts 13 are engaged and secured by tie-rods 14 under tension straddling the arches. The tie-rods engage slots in the backs of the channel-section struts by hooked ends 15. The last tie-rod 14, Fig. 5, adjacent a mine roadway end is forced into position by a tensioning member 25 used as a lever and fulcrumed on the edge of the mine arch 10. The outer end of the tie rod of the first strut is hooked to the edge of the first arch.
Patent GB-709686-A (GB)
Title: Combined sling shot and arrow catapult
IPC: F41B3/02
Filed: 1952-09-08
Abstract: 709,686. Toy projectors and projectiles. BEAN. D. Sept. 8, 1952. No. 22558/52. Class 132(3) A catapult may be adjusted (a) for projecting stones &c. or (b) for shooting arrows. As shown, arms 10, 10' pivotally connected at 11 are movable from sling- shot position, Fig. 3, to arrow shooting position, Fig. 5, and are prevented from closing by means of abutting flat surfaces 22, 24 and 22<SP>1</SP>, 24<SP>1</SP>, surfaces 21, 21<SP>1</SP> abutting in the latter position to form an arrow guide 40. Fig. 4 shows telescoping pivot pins 30, 31 connected by a tension spring 32, the arms 10, 10<SP>1</SP> thus being allowed to be separated as shown when they are being swung from one adjustment to the other.
Patent GB-222489-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B29/02
Filed: 1924-09-25
Abstract: 222,489. Sulzer FrÞres Soc. Anon. Sept. 25, 1923, [Convention date]. Instantaneous generators; feedwater, supplying.-Steam generating tubes a heated by the same or by separate furnaces are connected to a steam and water drum c, and a definite quantity of water is forced into each tube by a pump. The tubes may be supplied with water by the separate cylinders of a multi-cylinder pump. According to the Specification as open to inspection under Sect. 91 (3) (a) the water is supplied by a single pump having branched outlets fitted with regulating valves. This subject-matter does not appear in the Specification as accepted.
Patent GB-699093-A (GB)
Title: Improvements in or relating to dolly-operated electric switches
Inventor: GOUGH ERNEST
IPC: H01H23/16
Filed: 1950-09-15
Abstract: 699,093. Tumbler switches. WALSALL CONDUITS, Ltd. Sept. 13, 1951 [Sept. 15, 1950], No. 22743/50. Class 38 (v) The dolly 19 is acted upon by an extension of the resilient metal contact-carrying arm to hold the dolly in its extreme positions. As applied to the switch of Specification 699,092, the dolly part 20 engages a part 12 of a bent-over extension of the contact-carrying arm 11, the part 12 being cranked at 13, so that the free end of part 12 is depressed into engagement with the arm 11 on movement of the dolly, so as to prevent substantial bending of the part 12 so that the dolly movement is efficiently transferred to the arm 11. The dolly has a rubber' sound-absorbing buffer 25 as in Specification 699,094, and may have two parts 20 cooperating with two arms 11 which are separated by a central basal ridge, Figs. 4 to 6 (not shown), the invention may also be applied to the switch arm of Specification 699,095.
Patent GB-434384-A (GB)
Title: Improvements in or connected with mountings for optical observation instruments
IPC: G02B23/16
Filed: 1934-08-04
Abstract: 434,384. Mounting for optical instruments. BARR & STROUD, Ltd., and FRENCH, J. W., Caxton Street, Anniesland, Glasgow. Aug. 4, 1934, No. 22753. [Class 97 (i)] Mountings for optical instruments, such as range - finders and telescopes, intended for low and high angle observation, and which provide a yielding support for the instrument permitting of ready adjustment of the instrument during use, nave tne support afforded by a spring system which itself acts as the support and carries the entire weight which is on the mounting. The mounting shown in Figs. 1 and 2 comprises two supporting members, having at their upper ends crutch rests 5 for a range-finder and at their lower ends a spring part 7 attached to an apron 8 of harness consisting of waist and shoulder straps 10, 11. In a form shown in Fig. 4, crutch rests are formed on a cross bar supported by a member comprising arms 4 and a spring part 7. Instead of, as in forms described above, the mounting projecting in front of the observer it may be arranged to project towards the back of the observer as in the form shown in plan Fig. 6, where two supporting members 4, 7 are pivoted at positions 12 on a waist-belt. A cross bar member supported by two adjustable members as described may have pivoted or attached to it a platform on which an observation instrument, e.g. a pair of binoculars, may be mounted.
Patent GB-727068-A (GB)
Title: Friction drives
IPC: F16H15/28
Filed: 1952-09-11
Abstract: 727,068. Variable-speed. friction gearing; universal mountings. RUDMAN, DARLINGTON & CO., Ltd., RUDMAN, J., DARLINGTON, T., and SANDS, J., CUNNINGHAM -. Sept. 10, 1953 [Sept. 11, 1952], No. 22788/52. Classes 80 (1) and 80 (2). In friction gearing of the kind wherein a driving element contacts resilient friction material on a trans-axial face of a driven rotor, a yieldable coupling is provided between the resilient material and the rotor body to reduce the transmission of jerks should the speed of the driving element vary. As shown a part-spherical driving member 10 on the shaft of an electric motor 12 engages resilient friction material 20 on a metal ring which is bonded to a sponge rubber pad 18, the pad 18 being in turn bonded to the rotor 13 of taperecording apparatus. The motor has a pivotal mounting, such as a yoke (not shown), and has projecting therefrom two arms 27 which are pivoted to the arms of a bifurcated bell crank 26 so that movement of the bell crank connects and disconnects the drive. The motor is also mounted for bodily movement in a vertical plane in an arcuate path about the centre of the part-spherical member 10 so that the gearing constitutes a variable speed drive.
Patent GB-984681-A (GB)
Title: Skirt for personal wear
IPC: A41D1/14
Filed: 1961-06-23
Abstract: 984,681. Skirts. R. E. GASHIRA. June 23, 1961 [July 6, 1960], No. 22888/61. Heading A3V. A reversible straight skirt comprises a cylinder of knitted material folded back on itself at 2 and with a margin 5 of one layer 1 turned over the edge 3<SP>1</SP> of the other layer 1<SP>1</SP> at the waist, the layers being stitched at 6 to each other and to an elastic belt 4. There may be a second row of stitching (not shown) adjacent the edge 3<SP>1</SP>. Darts 7 are provided. The cylinder may be formed by tubular knitting or by joining the edges of a piece of knitted material by sewing or knitting. The layers 1, 1<SP>1</SP> may be of different colours.
Patent GB-692079-A (GB)
Title: An improved arrangement for accumulating energy of a bicycle dynamo during cycling
IPC: H02J7/14
Filed: 1951-10-02
Abstract: 692,079. Cycle lighting systems: BEER, H. B. Oct. 2, 1951 [Oct. 2, 1950], No. 22897/51. Class 38 (iv). A bicycle lamp 15 is supplied from an alternator 1 or accumulator 9, the latter being changed over a half-wave rectifier 8 from the alternator. A selector switch 4 is provided whereby the lamp may be connected directly to either the alternator or the accumulator, and whereby the rectifier is isolated from the alternator when the lamp is being supplied by the accumulator so as to avoid leakage of the accumulator through the rectifier. The switch has an intermediate " off " position in which the lamp, alternator and accumulator are all isolated. The switch may be manually operated or, alternatively, may be an automatic electromagnetic switch responsive to the voltage of the alternator, so that below a certain voltage the lamp is connected to the accumulator, whilst above that voltage the lamp and charging rectifier are connected to the alternator. The moving contact of the switch may be moved to an off " position by a manually-operated cam to open the lamp circuit when lighting is not required and the machine at stand-still.
Patent GB-285518-A (GB)
Title: Improvements in or relating to beet root and like cleaners
IPC: A23N7/00
Filed: 1927-06-17
Abstract: 285,518. Jones, J. June 17, 1927. Topping root crops.-The hopper 11 of a beetcleaner is provided with means for topping the beets as they are inserted. The beets are inserted into the triangular openings 13 and moved towards the narrow ends of the openings into the path of a cutter 12 which severs the tops, whereupon the roots fall into the hopper. The cutter may be of the reciprocating type, but as shown consists of an eccentrically mounted disc, the edge of which is preferably serrated.
Patent GB-661520-A (GB)
Title: An improved method of making electrical condensers
IPC: H01G13/00
Filed: 1949-09-06
Abstract: 661,520. Moulding electrical condensers. ERIE RESISTOR CORPORATION. Sept. 6, 1949 [Oct. 7, 1948], No. 23104/49. Class 87 (ii) A condenser of the type having end sections 1, 2, Fig. 10, of low resistance moulding powder and a middle section 3 of dielectric moulding powder is made by the following method: (a) low resistance moulding powder 8, Fig. 1, is loaded into a mould 6 and levelled off. The mould includes a bottom plunger 7 which supports a terminal 4 having a head 5. This plunger is then lowered, Fig. 2, and the material then compressed by a plunger 9, Fig. 3. The pressure compacts the powder and smooths the upper surface thereof; (b) Dielectric moulding powder is then loaded into the mould on the smooth compacted powder 8, levelled off, lowered into the mould and compacted and smoothed as shown at 10, Fig. 6; (c) Low resistance moulding powder is then similarly treated, as shown at 11, Fig. 9, the whole being cured under heat and pressure between the plungers 7 and 12, the plunger 12 carrying a terminal 4a. The curing under heat and pressure may be effected subsequent to the last compacting step (c). Before curing under heat and pressure the bottom plunger 7 may be replaced by another one. As shown, the terminal 4 is present during the whole of the mouldloading operations, but may be introduced only at the stage shown in Fig. 9.